Researchers at Tufts University have engineered a tooth-mounted sensor that tracks your every bite (and what it contains).
The device is two square millimeters in size and sticks to the surface of a tooth. The sensor is ingeniously simple — when its central layer changes encounters different chemicals (salt, ethanol), its electrical properties shift, transmitting a different spectrum of radio waves. Currently, the patch is set up to wirelessly transmit information about glucose, salt, and alcohol to a mobile device; its creators think it could be adapted to monitor even more metrics, including “a wide range of nutrients, chemicals and physiological states,” according to a press release.
But a tracker like this one could also have some negative side effects. Indeed, one 2017 study found that fitness tracking devices in general were associated with eating disorder symptoms among college students (though, strangely, the same didn’t hold true for calorie counting apps).
Why It’s Hot
For better and/or worse, wearable tech gets one step closer.